Messages in this thread |  | | Date | Fri, 26 Apr 2002 09:51:40 -0500 | From | Dan Yocum <> | Subject | Re: Poor NFS client performance on 2.4.18? |
| |
Trond,
So, would I be correct in assuming that backing out the linux-2.4.18-ping.dif patch would solve the problem in the short term?
Thanks, Dan
Trond Myklebust wrote: > > >>>>> " " == Dan Yocum <yocum@fnal.gov> writes: > > > Trond, et al. I'm getting poor NFS performance (~250KBps read > > and write) on 2.4.18 and am wondering if I'm the only one. > > There is no performance drop under other OSs or other kernel > > versions, so I don't think it's the server. > > > Here's the the details: > > > 2.4.18 patched with: > > NFS client patches (linux-2.4.18-NFS_ALL.dif) > > xfs-1.1-PR1-2.4.18-all.patch Ingo's Foster IRQ patch (these > > are dual Xeons) > > > If you need any more details, let me know. > > The latest NFS_ALL patches include experimental code that changes the > UDP congestion control. I'm basically trying to relax the algorithm to > what is standard on *BSD (i.e. we follow the standard Van Jacobson). > > This would mean that we don't wait for the reply from the server > before we send off the next request. Unfortunately, there appears to > be a lot of setups out there that start to drop packets when this > occurs, and I haven't yet finished determining the root cause. > > If I can manage to get my laptop to work again, I'll try to > investigate a bit more this weekend... > > Cheers, > Trond
-- Dan Yocum Sloan Digital Sky Survey, Fermilab 630.840.6509 yocum@fnal.gov, http://www.sdss.org SDSS. Mapping the Universe. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|  |